Bambas Family Website

June 20, 2016

The Garmin autopilot pitch servo is furnished with a mounting plate and specific instructions for installation in a Vans RV-7.  The plate becomes riveted to the center floor rib behind the baggage bulkhead.  The servo moves the elevator push-rod via its connection to the bellcrank.

Care is given to adjusting the length of the servo to pitch bellcrank connecting rod so that no over-center lockup can occur.

Wires from the db15 socket connect the servo to both the instrument panel autopilot controller and to the pitch trim servo located in the left elevator.  Torque sensors in the pictured servo generate signals fed to the pitch trim servo.

 

 

June 5, 2016

The flap position sensor is a Ray Allen POS-12.  The long arm slides in and out of the body changing the electrical resistance of the unit.  A linkage to the motor driven flap actuating arm controls its position.  The flap position may be displayed on the G3X screens.

May 29, 2016

The Garmin G3X magnetometer feeds magnetic heading signals to the ADAHRS units, obviating the need for a whisky compass. It can be mounted anywhere distant from aircraft magnetic fields. Many builders place them in a wingtip or tail assembly.

I fabricated a mounting plate and riveted it to the upper fuselage longeron and aft side of the baggage compartment bulkhead.  The magnetometer mounting ring is shown clamped to the mounting plate.  It is being marked so the front/rear axis of the magnetometer is parallel to that of the aircraft.